<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body></body>
</html>

<script>
  for (i = 1, sum = 0; i <= 64; i++) {
    sum += 2 ** (i - 1);
  }
  console.log(`芝麻总重量为${sum * 0.00001}kg`);
</script>
